Spindle or hub for agricultural implements.



' PATENTED JAN.1{..19'(T7.

wlo. BARKER.

OR AGRICULTURAL IMPLEMBNTS. urmonron FILED MAR. 17, 1906.

SPINDLE 0R HUB F 12v VE/VTOR WITNESSES yzqljomey J UNITED STATES PATENTOFFICE.

WILLIAM C. BARKER, OF NEW YORK, N. Y., ASSIGNOR TO THE BUCHER & GIBBSPLOW 00., OF CANTON, OHIO, A CORPORATION OF OHIO.

Specification of Letters Patent.

Patented Jan. 1, 1907.

Application filed March 17, 1906. Serial No. 306,560.

To all whom, it may concern:

Be it known that I, WILLIAM C. BARKER, a citizen of the United States,residing at New York, in the county of New York and State of New York,have invented certain new and useful Improvements in Spindles or I'Iubsfor Agricultural Implements, of which the following is a specification.

This invention has relation to disk harrows, disk plows, and'rollingcutters, and has for its object the provision in an implement of theclass referred to of, first, interlocking hub or spindle-sections soconstructed and arranged as to relieve the strain on the axlerodvertically, horizontally, or laterally; second, interlocking hub orspindle-sections so constructed and applied as to prevent the disks fromrevolving on the hub or axle and between the hub or spindle-faces,flanges, or collars, and thereby cutting the axle rod or hub; third,interlocking hub 0r spindle sections so constructed and applied as torelieve all torsional strain on the axle-rod; fourth, interlocking hubor spindle section so constructed and applied as to relieve all verticalor horizontal strain on the axle-rod.

In the accompanying drawings, Figure 1 is a central sectional viewrepresenting two hubs or spindle-sections mounted on an axlerod andhaving a disk clamped between their opposing faces. Figs. 2 and 3 areface views of the opposing or male and female ends of a hub orspindle-section. Figs. 4 and 5 are perspective views of the parts shownin Figs. 2 and 3. Fig. 6 is a face view of a part of a disk. Figs. 7, 8,and 9 are sectional views of modifications of interlocking spindles.

My improvements are applicable to-implements of different types, butmore particularly to disk harrows, disk cultivators, disk plows, rollingcutters, and the like in which a single or a series or a gang ofcutting-disks or their equivalent are arranged upon an axle or hub withinterlocking hubs, spindles, or faces bound together by an axle rod orbolt, and such hubs or spindles may be square, angular, or round, andthe hubs or spindles may turn with or independently of the axle-rod. Theaccompanying drawings, Figs. 1 to 9, inclusive, more particularlyrepresent parts of a disk harrow in which the spindle or hub is shown assquare and the hub or spindle-sections D as rigidly connectedthereto-that is, formed with correspondingly-squared central holesbutthe axle-rod may be round and the hubs or spindle-sections keyed theretoor, if desired or expedient, arranged loosely on the axle-rod, so as torotate thereon.

In the construction of disk harrows or disk cultivators the hub orspindle-sections D are intended and adapted'to support and separate thecutting or harrowing disks A, which are usually of concavo-convex form.According to my invention these hubs orspindlesections consist ofcastings of suitable length, each of which consists of a cylindrical orother shaped shank with a flange, plate, or clamping-collar at each end,as shown at G G, respectively, the collar or flange G being convex onits outer face and the collar or flange G correspondingly concave tocon- .form to the concavo-convex shape of the disk. The end of thespindle having the convex collar or flange G 1s formed with an extensionC and the collar or flange G with a corresponding socket E, into whichwhen the sections are assembled with the disks in position the extensionC enters. As it is intended that the hub-sections shall interlock onewith another, the socket E and extension C may be made square, angular,or otherwise for this purpose, or the extension E may be formed withlugs d d, as shown, which enter notches or slots 6 e at the outer end ofthe socket E, or the socket and extension may be correspondingly groovedand ribbed on their opposing surfaces or otherwise shaped so as tointerlock at their ends with each other and so as to provide for theinterlocking of the disk with the extension C to prevent the disk fromturning on the hub or its extension C.

The disk A is formed with a central hole B,

which may be of any suitable form to coincide with the shape of thatpart of the extension C upon which it is mountedas, for instance, thehole B may be formed with radial notches a a to receive the lugs d d onthe extension C, or if the extension C is made square or angular thehole in the disk will be made to correspond in such particulars as willcause the disk and the extension to interlock. While the collars orflanges G G are made, respectively, with convex and concave surfaces toadapt them to the shape of the disk, it is advantageous to have theflange of the concave side of the disk smaller in diameter than theflange of the convex side of the disk, so that when the disk is clampedto these flan es it w1ll give additional curvature to the dis ,andthereby hold it more rigidly in position.

As will be seen, the hub or spindle-sections when constructed andassembled as shown and described, with their ends interlockedindependently of the axle-rod, form one continuous axle bound togetherby the axle-rod, so as to take up all torsional strain by revolving alltogether and exactly alike; also, that by reason of the extension Cfitting snugly into the socket E and the spindles bound toether by theaxle-rod the latter is relieved rom all vertical or horizontal strain,which under other conditions would be caused by one or more of the disksstriking an obstruction.

I desire toemphasize the fact that one of the essential features of myinvention is the provision of adequate means for preventing the rotationof the disks independently of the hubs or spindles. Various expedientswithin the'spirit and scope ofmy invention may be used I for thispurpose. Thus the concave flange at the end ofthe spindle-section or hubmay be formed or cast with studs or projections and the disk providedwith holes or slots into or through which such projections pass, so asto bind or interlock the flange and disktogether, and these studs andholes may be used in addition to other means already described forpreventing the rotation of the disks between the flanges.

Having described my invention, what I claim as new, and desire to secureby Letters Patent, is

A spindle or hub for agricultural implements comprising a series 01shanks having, each, at one end a collar or flange with an integralcentral extension having laterally-extending lugs and, at the other end,a collar or flange with a central socket having notches to receive thelugs on the adjacent end of an adjoining shank.

In testimony whereof I have signed my name to this specification in thepresence of two subscrlbing witnesses.

WILLIAM C. BARKER.

Witnesses:

A. B. MARTIN, VICTOR ROHE.

